Water-heater for range-boilers.



N0. 679,552. Patnted Illly 30, |90l. J. J. CUNNINGHAM.

WATER HEATER F08 RANGE BOILEBS.

l (Applicston Med In. 2. 1900.? (Ilo lodal.)

fra/enfin Wzl@ wsse-3 "TN: Noam: PETERS Do. moro'mjnc.. wAsnmuTon, |:lc,

JOHN J. CUNNINGHAM, OF TORONTO,

a'rer erica,

CANADA, ASSIGNOR TO 'll'IE GURNEY FOUNDRY COMPANY, LIMITED, OF SAMEPLACE.

WATER-HEATER FO R RANGE-BOILERS.

SPECIFICATION forming part of Letters Patent No. 679,552, dated July 30,1901.

Application filed March 2, 1900. Serial No. 7,140. (No model) To tit'LUL/tom, t Naty concern:

Be it known that I, JOHN J osEPH CUNNING- HAM, a subject of the Queen ofGreat Britain, residing at 245 Macdonell avenue, in the city ofrIoronto, in the county of York and Province of Ontario, Canada, haveinvented certain new and useful Improvements in Water- Heaters forRangedvoilers; and I hereby declare that the following is a full, clear,and

Io exact description of the same.

This invention relates to certain new and useful improvements in waterheaters for range-boilers, and relates more particularly to awater-heater which can be easily attached to any range-boiler withoutthe alteration of any of the parts or fixtures; and the object ot' theinvention is to so arrange the heater that it will quickly heat thewater and cause its rapid circulation to the range-boiler; and

2o the invention consists, essentially, of a water-head to which areconnected the iiow and return pipes in circulation with the rangeboilerand a series of depending or downwardly-directed water standards ortubes in circulation with the water-head, each standard or tube beingprovided with a central partition dividing it into two water legs, whichwater-legs are in circulation with each other at the bottom of the waterstandard or tube and at the water-head, a burner located below the lowerends ot' the Water standards or tubes, and a casing inclosing thewaterstandards and burner and lower part of the water-head, ashereinafter more fully set forth, and more particularly pointed out inthe claims.

In the drawings, Figure l is avertical section of the heater, showing itattached to a range-boiler. Fig. 2 is a plan view of the 4o under sideof the water-head. Fig. 3 is a vertical section of the lower end of thewater standard or tube.

Like letters oi' reference refer to like parts throughout thespecification and drawings.

A represents the range-boiler, to the lower end of which is tted thereturn-pipe B, and to the upper end of which is tted the flowpipe C.Fitted to the top of the return-pipe B is the bottom d of the water-headD, and tted to the iiow-pipe C is the top d of the water-head D.Depending from the bottom d of the water-head D are a series of waterstandards or tubes E, the upper ends of which are in connection with thewater-head D and the lower ends of which are hermetically closed. Ineach of the water standards or tubes E is a central partition F, whichextends downwardly from the top of the tube to approximately the bottom.Between the bottom of the partition and the bottom of the 6o waterstandard or tube is a portfto permit the circulation between the twowater-legs into which the tube is divided by the partition F. Locatedbelow the bottom of the wa ter standards or tubes E is a burner G,fitted with a pipe I-I, in communication with the heating agent. Theburner G is provided with a hub I, haviuga central bore, through whichpasses the return-pipe B, and passing through the hub I is a set-screwJ, by means of which 7o the burner G is connected to the return-pipe B;Inclosing the burner G, water standards or tubes E, and lower part ofthe water-head D is a casing K to retain the heat around the waterstandards or tubes in order that its heating properties can be absorbedand utilized for the purpose of heating the water in the standards ortubes. The lower part of the casing K is provided with a series ofopenings L, preferably in alinement 8o with the top of the burner G, toprovide a supply ot' atmospheric air for the xnaintenance of thecombustion. The top of the casing K is provided with an outlet M, towhich can be titted a pipe leading to the chimney or other escape-duct.

The length, diameter, and number of water standards or tubes and thedimensions and shape of the water-head and burner can be varied withoutdeparting from the nature 9o of the invention.

The operation of the invention is as follows: The heating agent isignited at the burner G, the combustion being maintained by the airadmitted through the openings Il. The heated gases and products ofcombustion ascend within the casing K and coming in contact with thewater standards or tubes E are absorbed by the same and the water withinthem. The water as it becomes heated cirroo culates from therange-boiler through the return-pipeB to the water-head D and descendsthrough one leg ot. each of the water standards or tubes and ascendsthrough the other to the water-head, from which it is returned to theboiler by the flow-pipe C. The water as it passes through thereturn-pipe to the water-head is partially heated by the gases andproducts of combustion within the casing, so that when it reaches thewater-head the chill is taken olf of it.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

l. A water-heater for range-boilers, embracing in its construction awater head, flow and return pipes connected to the water-head, a seriesof Water-tubes depending from the water-head su rrounding thereturnpipe, the lower ends oi"- the water-tubes being hermeticallyclosed, and the upper ends in circulation with the Water-head, aVertical partition centrally located in each watertube forming two legswhich are in circulation with each other at the lower end of the tubeand with the water-head at the upper end, a heater opposed to the lowerends of the water-tubes and a perforated casing inclosingthe'water-head, the water-tubes, and

that portion of the return-pipe between the water head and heater,substantially as specitied.

2. A water-heater for range-boilers embracing in its construction awater-head, flow and return pipes connected to the waterhead, a seriesof water-tubes depending from the water-head surrounding thereturn-pipe, the lower ends of the water-tubes being hermetically closedand the upper ends in circulation with the water-head, a Verticalpartition centrally located in each Water-tube forming two legs in thesame, in circulation with each other at the lower end of the tube andwith the water-head at the upper end, a heater opposed to the lower endsof the water-tubes encircling the return-pipe, a perforated casinginclosing the water-head, the water-tubes and that portion of thereturnpipe between the water head and heater, and an outlet for thecasing contiguous to the water-head, substantially as specified.

Toronto, February 19, 1900.

J. J CUNNINGHAM. In presence of- C. H. Rrcnns, G. SNYDER.

